# A Hypothetic Equation from Which Growth Analysis Equations of Forages and Ruminants are Derived as Special Cases

Masataka Shimojo, Takashi Bungo, Manabu Tobisa, Yoshimi Imura, Naoki Koga, Shao Tao, Muhammad Yunus, Yutaka Nakano, Ichiro Goto, Mitsuhiro Furuse, Yasuhisa Masuda

8 引用 (Scopus)

### 抄録

This study was conducted to suggest a hypothetic equation from which absolute growth rate [AGR] and relative growth rate [RGR] of forages and those of ruminants were derived as special cases. The following equation was suggested: H 0 = (1/α · dβ/dt) · (α/γ) · (dW/dβ), where α, β and γ are parameters related to AGR of forages [AGRr], AGR of ruminants [AGRf], RGR of forages [RGRf] or RGR of ruminants [RGRr], W denotes dry weight per plant or body weight per animal. Substituting an appropriate term from the four terms (1, A, F and W) for each of α, β and γ gave the following six equations: AGR=dW/dt, RGR=(1/W)·(dW/dt), AGRf={(1/A)·(dW/dt)}·(A), RGRf={(1/A)·(dW/dt)}·(A/W), AGRr=(dF/dt)·(dW/dF), RGRr={(1/W)·(dF/dt)}·(dW/dF), where A=leaf area, (1/A)·(dW/dt)=net assimilation rate, A/W=leaf area ratio, F=cumulative feed intake, dF/dt=feed ingestion rate, dW/dF=feed efficiency, (1/W)·(dF/dt)=feed ingestion rate per unit W. In this study a hypothetic equation was suggested to the derivation of growth analysis equations of forages and ruminants as special cases.

元の言語 英語 103-109 7 Journal of the Faculty of Agriculture, Kyushu University 43 1-2 出版済み - 11 1 1998

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Ruminants
ruminants
forage
Growth
leaf area
ingestion
net assimilation rate
Eating
feed conversion
feed intake
body weight
Body Weight
Weights and Measures
animals

### All Science Journal Classification (ASJC) codes

• Biotechnology
• Agronomy and Crop Science

### これを引用

A Hypothetic Equation from Which Growth Analysis Equations of Forages and Ruminants are Derived as Special Cases. / Shimojo, Masataka; Bungo, Takashi; Tobisa, Manabu; Imura, Yoshimi; Koga, Naoki; Tao, Shao; Yunus, Muhammad; Nakano, Yutaka; Goto, Ichiro; Furuse, Mitsuhiro; Masuda, Yasuhisa.

：: Journal of the Faculty of Agriculture, Kyushu University, 巻 43, 番号 1-2, 01.11.1998, p. 103-109.

Shimojo, M, Bungo, T, Tobisa, M, Imura, Y, Koga, N, Tao, S, Yunus, M, Nakano, Y, Goto, I, Furuse, M & Masuda, Y 1998, 'A Hypothetic Equation from Which Growth Analysis Equations of Forages and Ruminants are Derived as Special Cases', Journal of the Faculty of Agriculture, Kyushu University, 巻. 43, 番号 1-2, pp. 103-109.
Shimojo, Masataka ; Bungo, Takashi ; Tobisa, Manabu ; Imura, Yoshimi ; Koga, Naoki ; Tao, Shao ; Yunus, Muhammad ; Nakano, Yutaka ; Goto, Ichiro ; Furuse, Mitsuhiro ; Masuda, Yasuhisa. / A Hypothetic Equation from Which Growth Analysis Equations of Forages and Ruminants are Derived as Special Cases. ：: Journal of the Faculty of Agriculture, Kyushu University. 1998 ; 巻 43, 番号 1-2. pp. 103-109.
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title = "A Hypothetic Equation from Which Growth Analysis Equations of Forages and Ruminants are Derived as Special Cases",
abstract = "This study was conducted to suggest a hypothetic equation from which absolute growth rate [AGR] and relative growth rate [RGR] of forages and those of ruminants were derived as special cases. The following equation was suggested: H 0 = (1/α · dβ/dt) · (α/γ) · (dW/dβ), where α, β and γ are parameters related to AGR of forages [AGRr], AGR of ruminants [AGRf], RGR of forages [RGRf] or RGR of ruminants [RGRr], W denotes dry weight per plant or body weight per animal. Substituting an appropriate term from the four terms (1, A, F and W) for each of α, β and γ gave the following six equations: AGR=dW/dt, RGR=(1/W)·(dW/dt), AGRf={(1/A)·(dW/dt)}·(A), RGRf={(1/A)·(dW/dt)}·(A/W), AGRr=(dF/dt)·(dW/dF), RGRr={(1/W)·(dF/dt)}·(dW/dF), where A=leaf area, (1/A)·(dW/dt)=net assimilation rate, A/W=leaf area ratio, F=cumulative feed intake, dF/dt=feed ingestion rate, dW/dF=feed efficiency, (1/W)·(dF/dt)=feed ingestion rate per unit W. In this study a hypothetic equation was suggested to the derivation of growth analysis equations of forages and ruminants as special cases.",
author = "Masataka Shimojo and Takashi Bungo and Manabu Tobisa and Yoshimi Imura and Naoki Koga and Shao Tao and Muhammad Yunus and Yutaka Nakano and Ichiro Goto and Mitsuhiro Furuse and Yasuhisa Masuda",
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T1 - A Hypothetic Equation from Which Growth Analysis Equations of Forages and Ruminants are Derived as Special Cases

AU - Shimojo, Masataka

AU - Bungo, Takashi

AU - Tobisa, Manabu

AU - Imura, Yoshimi

AU - Koga, Naoki

AU - Tao, Shao

AU - Nakano, Yutaka

AU - Goto, Ichiro

AU - Furuse, Mitsuhiro

AU - Masuda, Yasuhisa

PY - 1998/11/1

Y1 - 1998/11/1

N2 - This study was conducted to suggest a hypothetic equation from which absolute growth rate [AGR] and relative growth rate [RGR] of forages and those of ruminants were derived as special cases. The following equation was suggested: H 0 = (1/α · dβ/dt) · (α/γ) · (dW/dβ), where α, β and γ are parameters related to AGR of forages [AGRr], AGR of ruminants [AGRf], RGR of forages [RGRf] or RGR of ruminants [RGRr], W denotes dry weight per plant or body weight per animal. Substituting an appropriate term from the four terms (1, A, F and W) for each of α, β and γ gave the following six equations: AGR=dW/dt, RGR=(1/W)·(dW/dt), AGRf={(1/A)·(dW/dt)}·(A), RGRf={(1/A)·(dW/dt)}·(A/W), AGRr=(dF/dt)·(dW/dF), RGRr={(1/W)·(dF/dt)}·(dW/dF), where A=leaf area, (1/A)·(dW/dt)=net assimilation rate, A/W=leaf area ratio, F=cumulative feed intake, dF/dt=feed ingestion rate, dW/dF=feed efficiency, (1/W)·(dF/dt)=feed ingestion rate per unit W. In this study a hypothetic equation was suggested to the derivation of growth analysis equations of forages and ruminants as special cases.

AB - This study was conducted to suggest a hypothetic equation from which absolute growth rate [AGR] and relative growth rate [RGR] of forages and those of ruminants were derived as special cases. The following equation was suggested: H 0 = (1/α · dβ/dt) · (α/γ) · (dW/dβ), where α, β and γ are parameters related to AGR of forages [AGRr], AGR of ruminants [AGRf], RGR of forages [RGRf] or RGR of ruminants [RGRr], W denotes dry weight per plant or body weight per animal. Substituting an appropriate term from the four terms (1, A, F and W) for each of α, β and γ gave the following six equations: AGR=dW/dt, RGR=(1/W)·(dW/dt), AGRf={(1/A)·(dW/dt)}·(A), RGRf={(1/A)·(dW/dt)}·(A/W), AGRr=(dF/dt)·(dW/dF), RGRr={(1/W)·(dF/dt)}·(dW/dF), where A=leaf area, (1/A)·(dW/dt)=net assimilation rate, A/W=leaf area ratio, F=cumulative feed intake, dF/dt=feed ingestion rate, dW/dF=feed efficiency, (1/W)·(dF/dt)=feed ingestion rate per unit W. In this study a hypothetic equation was suggested to the derivation of growth analysis equations of forages and ruminants as special cases.

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